Oct 27 13:00:27.222 INFO checking 02alexander/maze-solver against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192-2
Oct 27 13:00:27.223 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-3/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/pr-55192-2/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +155510e377ae2a8d8ee0dad1a5f809c9062a5526-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 27 13:00:27.543 INFO blam! 28a46b0ede2a81207715518713582301fa4d062f8abb6ccf95424395631c1b17
Oct 27 13:00:27.544 INFO running `"docker" "start" "-a" "28a46b0ede2a81207715518713582301fa4d062f8abb6ccf95424395631c1b17"`
Oct 27 13:00:27.962 INFO kablam! usermod: no changes
Oct 27 13:00:28.005 INFO kablam!     Checking flate2 v0.2.20
Oct 27 13:00:29.055 INFO kablam!     Checking imagefmt v4.0.0
Oct 27 13:00:30.803 INFO kablam!     Checking maze-solver v0.1.0 (/source)
Oct 27 13:00:31.573 INFO kablam! warning: unused imports: `read`, `write`
Oct 27 13:00:31.573 INFO kablam!  --> src/main.rs:3:16
Oct 27 13:00:31.573 INFO kablam!   |
Oct 27 13:00:31.573 INFO kablam! 3 | use imagefmt::{read, write, ColFmt, ColType};
Oct 27 13:00:31.573 INFO kablam!   |                ^^^^  ^^^^^
Oct 27 13:00:31.573 INFO kablam!   |
Oct 27 13:00:31.573 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 27 13:00:31.573 INFO kablam! 
Oct 27 13:00:31.574 INFO kablam! warning: unused import: `std::mem::drop`
Oct 27 13:00:31.574 INFO kablam!  --> src/tree.rs:2:5
Oct 27 13:00:31.574 INFO kablam!   |
Oct 27 13:00:31.574 INFO kablam! 2 | use std::mem::drop;
Oct 27 13:00:31.574 INFO kablam!   |     ^^^^^^^^^^^^^^
Oct 27 13:00:31.574 INFO kablam! 
Oct 27 13:00:31.574 INFO kablam! warning: unused import: `Node`
Oct 27 13:00:31.574 INFO kablam!  --> src/path_to_end.rs:3:35
Oct 27 13:00:31.574 INFO kablam!   |
Oct 27 13:00:31.574 INFO kablam! 3 | use super::tree::{QuaternaryTree, Node, Link};
Oct 27 13:00:31.574 INFO kablam!   |                                   ^^^^
Oct 27 13:00:31.574 INFO kablam! 
Oct 27 13:00:31.645 INFO kablam! warning: unused imports: `read`, `write`
Oct 27 13:00:31.645 INFO kablam!  --> src/main.rs:3:16
Oct 27 13:00:31.645 INFO kablam!   |
Oct 27 13:00:31.645 INFO kablam! 3 | use imagefmt::{read, write, ColFmt, ColType};
Oct 27 13:00:31.645 INFO kablam!   |                ^^^^  ^^^^^
Oct 27 13:00:31.645 INFO kablam!   |
Oct 27 13:00:31.645 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 27 13:00:31.645 INFO kablam! 
Oct 27 13:00:31.645 INFO kablam! warning: unused import: `std::mem::drop`
Oct 27 13:00:31.645 INFO kablam!  --> src/tree.rs:2:5
Oct 27 13:00:31.645 INFO kablam!   |
Oct 27 13:00:31.645 INFO kablam! 2 | use std::mem::drop;
Oct 27 13:00:31.645 INFO kablam!   |     ^^^^^^^^^^^^^^
Oct 27 13:00:31.645 INFO kablam! 
Oct 27 13:00:31.716 INFO kablam! warning: variable does not need to be mutable
Oct 27 13:00:31.716 INFO kablam!   --> src/tree.rs:41:8
Oct 27 13:00:31.716 INFO kablam!    |
Oct 27 13:00:31.716 INFO kablam! 41 |             let mut cur = &mut *next.take().unwrap();
Oct 27 13:00:31.716 INFO kablam!    |                 ----^^^
Oct 27 13:00:31.716 INFO kablam!    |                 |
Oct 27 13:00:31.716 INFO kablam!    |                 help: remove this `mut`
Oct 27 13:00:31.716 INFO kablam!    |
Oct 27 13:00:31.716 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 27 13:00:31.717 INFO kablam! 
Oct 27 13:00:31.751 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 13:00:31.751 INFO kablam!   --> src/main.rs:20:2
Oct 27 13:00:31.751 INFO kablam!    |
Oct 27 13:00:31.751 INFO kablam! 20 |     imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto);
Oct 27 13:00:31.751 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 13:00:31.751 INFO kablam!    |
Oct 27 13:00:31.751 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 27 13:00:31.751 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 13:00:31.751 INFO kablam! 
Oct 27 13:00:31.855 INFO kablam! warning: variable does not need to be mutable
Oct 27 13:00:31.855 INFO kablam!   --> src/tree.rs:41:8
Oct 27 13:00:31.855 INFO kablam!    |
Oct 27 13:00:31.855 INFO kablam! 41 |             let mut cur = &mut *next.take().unwrap();
Oct 27 13:00:31.855 INFO kablam!    |                 ----^^^
Oct 27 13:00:31.855 INFO kablam!    |                 |
Oct 27 13:00:31.855 INFO kablam!    |                 help: remove this `mut`
Oct 27 13:00:31.855 INFO kablam!    |
Oct 27 13:00:31.855 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 27 13:00:31.855 INFO kablam! 
Oct 27 13:00:31.923 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 13:00:31.923 INFO kablam!   --> src/main.rs:20:2
Oct 27 13:00:31.923 INFO kablam!    |
Oct 27 13:00:31.923 INFO kablam! 20 |     imagefmt::write("out.bmp", maze.width, maze.height, ColFmt::RGB, &pixels, ColType::Auto);
Oct 27 13:00:31.923 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 13:00:31.923 INFO kablam!    |
Oct 27 13:00:31.923 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 27 13:00:31.923 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 13:00:31.923 INFO kablam! 
Oct 27 13:00:31.945 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.96s
Oct 27 13:00:31.951 INFO kablam! su: No module specific data is present
Oct 27 13:00:32.231 INFO running `"docker" "rm" "-f" "28a46b0ede2a81207715518713582301fa4d062f8abb6ccf95424395631c1b17"`
Oct 27 13:00:32.314 INFO blam! 28a46b0ede2a81207715518713582301fa4d062f8abb6ccf95424395631c1b17